Pokemon Company's crossover of Pokemon and Tecmo Koei's Nobunaga's Ambition series topped the charts in its first week of sales. Its 172,000 units was enough to beat Shining Blade, the latest PSP entry in Sega's Shining series, which sold 122,000 units in its first week, and the PSP conversion of the popular Madoka Magika franchise, which sold 62,000.

Other debuts this week include the PSP version of Tokimeki Memorial Girl's Side Premium 3rd Story (originally released on DS), 3DS escape game If I Were in a Sealed Room with a Girl I'd Probably XXX, horse racing game Winning Post 7 2012, and visual novel/adventure game Amnesia Later.

Nippon Ichi's PS3 RPG Legasista saw a low debut with under 10,000 units sold. The PS3 version of Mass Effect 3 narrowly made it into the top 20 with 8,000 units sold.

Here's the full top 20 Media Create sales chart covering March 12 through March 18. Life to date sales are in parentheses.